Do I need a chiller?

[fkshiu]

Simply try having a fan blowing across the water's surface before investing in a chiller.

I regard chillers only as a last resort especially in a temperate climate as we have in the Lower Mainland. They suck power like mad and actually heat up the room they're in.

Fans are an extremely effective first step, especially where humidity is relatively low like around here. Room and portable ACs don't use much more power than chillers and actually cool the entire room rather than heating it up like a chiller would.